Senior AI Software Engineer – LLMs & RAG Lead

Myn; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Myn is seeking a Senior AI Software Engineer to own end-to-end features, bridging complex AI models and intuitive user experiences in a production environment. You will architect full-stack solutions using TypeScript and React, integrating LLMs with RAG workflows and collaborating with cross-functional teams to deliver production-ready capabilities with performance and cost efficiency.

Join a team building robust systems that couple cutting-edge AI with engaging user experiences, while

Qualifications

• 5+ years of professional software engineering experience with a focus on full-stack development.
• Expertise in TypeScript and React for building responsive, production‑grade frontends.
• Experience integrating LLMs into production systems, including RAG and agentic workflows.
• Strong background in prompt engineering, evaluation frameworks, and AI observability.
• Experience with cloud‑native architecture and distributed systems.
• Deep understanding of API design, microservices, and event‑driven architectures.
• Ability to manage technical tradeoffs regarding AI latency, cost, and system performance.
• Commitment to engineering excellence, including CI/CD, automated testing, and clean code principles.

Responsibilities

• Architect and develop full-stack solutions using TypeScript and React.
• Integrate LLMs into production systems with RAG and agentic workflows.
• Lead the development of AI evaluation frameworks and observability tools.
• Collaborate with cross‑functional teams to translate complex requirements into production features.
• Ensure performance, reliability, and cost-efficiency in a production environment.

Skills

Full-stack development

TypeScript

React

LLMs integration

RAG workflows

Prompt engineering

AI observability

Cloud-native

APIs & microservices

Job description

Myn is seeking a Senior AI Software Engineer to own end-to-end features, bridging complex AI models and intuitive user experiences in a production environment. You will architect full-stack solutions using TypeScript and React, integrating LLMs with RAG workflows and collaborating with cross-functional teams to deliver production-ready capabilities with performance and cost efficiency.

Join a team building robust systems that couple cutting-edge AI with engaging user experiences, while